Shuttle-check.



Patented-Dec. 23, |902. W. H. BAILEY & l. SNOW.

SHUTTLE cHEcK.

(Application led Dec. 28, 1901.)

(No Model.)

Unrrnn Srnrns PATnNr OFFICE.

VALTER H. BAILEY, OF NORTH ANDOVER, MASSACHUSETTS, AND ISAAC SNOW, OFPHILADELPHIA, PENNSYLVANIA, ASSIGNORS TO DRAPER COMPANY, OF HOPEDALE,MASSACHUSETTS, A CORPORATION OF MAINE.

SHUTTLE-CHECK.

SPECIFICATION formingpart of Letters Patent N o. 716,514, dated December23, 1902.

Application iiled December 28, 1901. Serial No. 87,528. (No model.)

To all whom, t may concern:

Be it known that we, WALTER H. BAILEY, residing at North Andover, in thecounty of Essex and State of Massachusetts, and ISAAC SNOW, residing atPhiladelphia, in the county of Philadelphia and State of Pennsylvania,citizens of the United States, have invented an Improvement inShuttle-Checks, of which the following description, in connection with1o the accompanying drawings, is a specification, like characters on thedrawings representing like parts.

This invention has for its object the production of novel means forchecking the movement of a shuttle as it enters the shuttle-box of theloom and for preventing the rebound of said shuttle, the devices of theinvention operating to bring the shuttle to rest at a substantiallypredetermined point.

zo The various features of the invention will be more fully hereinafterdescribed,and pointed out in the claims.

Figure lis a top or plan view, partly broken out, of the lett-hand endof the lay ot a loom z5 with one embodiment of our invention appliedthereto. Fig. 2 is a rear elevation of the parts shown in Fig. l. Fig. 3is a righthand end elevation ,of the lay and adjacent parts shown inFig. 2; and Fig. 4 is a section 3o on the line Fig. 2.

We have herein shown the lay A3 as having a shuttle-box thereoncomprising a front plate or wall B, the back Wall B', an overhangingshuttle-guard B2, and a binder BX, pivotally mounted near the outer endof the lay at bx, and these parts are or may be of any usual orwell-known construction. The lay is longitudinally slotted at AX for thestatt of the usual picker P. The usual protector rock- 40 shaft 19 isshown as mounted in bearings 19X beneath the lay and has mounted thereonthe dagger p' and the rocker-arm p2, having the upturned ingero3 to bearagainst the free end ot' the binder, the action of said rockshaft beingcontrolled by a spring SX, which surrounds the shaft and acts to holdthe iinger p3 against the binder ,as usual in this class of devices.

In our present invention We have provided 5o in addition to thespringcontrolled rockshaft p, which serves to exert a certain force uponthe binder B as it is thrown outward by the impact of the enteringshuttle, a spring-controller for the binder, which is in the nature of abinder-spring, and means which are rendered operative by the momentum ofthe shuttle after the shuttle has come in contact with the binder toincrease the tension of the binder-spring. Normally the binder spring isont of contact with the 6o binder, so that the only force to which thebinder is subjected is the spring-controlled rock-shaft 9.When,therefore,ashuttle enters the shuttle-box and contacts with thebinder, the said binder is subjected to the pressure exerted by thespring-controlled rock-shaft, and as the shuttle continues its movementthe binder is thrown into engagement with the binder-spring and issubjected to the pressure of the binder-spring in addition to that ot 7othe rock-shaft. When the shuttle nears the end of its flight, means arebrought into op eration to increase the tension of the binderspringsutliciently to bring the shuttle to rest and prevent its rebound.

Secured upon the back of the lay is a suitable bracket 3, to which ispivoted in any suitable way a spring-supporting member 4, this memberbeing conveniently shown as pivoted between lugs or ears 5 upon the 8obracket 3. Secured to the spring-supporting member 4 is a springS,Mwhich is adapted to engage the binder and which operates as abinder-spring. An actuating-lever 6 is also pivoted to the bracket 3 andhas a tail or 85 cam extension 7, which engages the springsupportingmember 4, an arm 8 of the lever 6 extending across the patht of thepicker P, as illustrated in the drawings. The tail or cam portion 7 ofthe lever 6 is conned between ears or anges 9 upon the end of thespringsupporting member 4, said ears or flanges operating to hold thelever 6 and member 4 in operative position. The lever 6 has the at face10, which normally engages a fiat 95 face on the spring-supportingmember 4, and when the parts are in this position the arm 8 of the leverstands across the path of the picker-statt, while the end of the springS is slightly separated from the binder, as seen in roo Fig. l. Thespring in its normal positionl therefore exerts no pressure upon thebinder.

When the shuttle enters the shuttle-box, as shown in dotted lines, Fig.1, it strikes the swell of the binder BX and throws the latter outwardwith great violence, such outward movement of the binder being opposedby the action of the spring SX on the rock-shaft p. As soon as thebinder is thrown outward slightly it comes into contact with the springS and the tension of said spring is added to that of the spring SX, sothat at this point the pressure against the binder is lthat resultingfrom the two springs S SX. As the shuttle continues its movement itstrikes the picker and the latterl is moved with the shuttle. Suchimpact of the shuttle upon the picker drives the picker-staff backwardand forces the same against the arm 8 of the lever 6, therebyswingingsaid lever into the dotted line position, Fig. 4. This action ofthe lever 6 operates, through the cam or tail portion thereof, 7, toswing the spring-supporting member 4 into the dottedline position,thereby forcing the spring S against the binder with a greater degree oftension. It will thus be seen that as the binder is thrown outward bythe impact of the shuttle it is subjected to three distinct degrees ofpressure-first, the pressure generated by the action of the spring SX;second, the pressure generated by the continued action of the spring SXand the added action of the spring S, and third, by the continued actionof the springs SX and S and the further or increased action 0f thespring S occasioned by the shuttle-induced movement of the picker. Theforce with which the entering shuttle strikes the binder is sometimessufticient to throw the said binder outwardly far enough to cause it tolose contact with the shuttle for an instant, and while the action ofthe springs S SX would bring the binder back against the shuttle almostinstantly, yet this action is accelerated by the shuttle-inducedmovement of the picker against the lever 6, the said cam-lever 6operating to increase the tension upon the binder-spring sufficiently tobring the binder hard enough against the shuttle before the shuttle hashad time to rebound to bring the shuttle to rest and prevent anyrebound.

By the expression tension of the binderspring77 as used in thespecification and claims we mean the pressure of the spring due solelyto the internal strains to which the spring is subjected, or, in otherwords, pressure which is applied to the binder solely by thebinder-spring. Any change of the tension of the binder-spring, however,will result in a change of the flexure of the spring. When the tensionof the binder-spring is increased, the iiexure of the spring will alsobe increased, and Vice versa. Our invention therefore comprises meansfor increasing the tension of the binder-spring after the shuttle hascome in contact with the binder, such means being rendered operative bythe irnpact of the shuttle.

While we have herein illustrated one simple mechanism in which ourinvention may be embodied, yet we do not wish to be limited to the exactconstruction shown, as the details thereof may be varied in various wayswithout departing from the spirit of the invention as expressed in theappended claims.

Having fully described our invention, what we claim as new, and desireto secure by Let ters Patent, is-

1. In a loom, a shuttle-box, a binder, a binder-spring, and meansactuated by the impact of the entering shuttle subsequent to y itscontact with the binder, to adjust the ten- 'sion of the binder-springin proportion to the momentum of the shuttle.

2. In a loom, a shuttle-box, a binder, a binder-spring, and meansgoverned by or through the entering shuttle to increase the tension ofthe binder-spring throughout its entire extent, whereby the pressure ofthe spring upon the binder is increased.

3. In a loom, a shuttle-box, a binder, a

binder-spring, and means actuated by the impact of the entering shuttlesubsequent to its contact with the binder to increase the flexure of thespring, whereby the pressure of said spring upon the binder isincreased.

4. In a loom, a shuttle-box, a binder, a binder-spring, and meansrendered operative after the shuttle has contacted with the binder toincrease the iexure of the spring in proportion to the momentum of theenterin g shuttle, whereby the pressure of the spring upon the binder isincreased.

5. In a loom, a shuttle-box, a binder, a binder-spring, a movablesupport therefor, and means rendered operative by the entering shuttleto shift the support and thereby increase the tension of thebinder-spring.

6. In a loom, the lay, a shuttle-box thereon, a binder, apivotally-mounted binder-spring, and means operated by or through theimpact of the entering shuttle upon the picker to increase the tensionof said spring.

7. In a loom, the lay, a shuttle-box thereon, a binder, a binder-spring,and a cam-lever coperating with the spring, said cam-lever beingconstructed to be actuated by the shuttle-induced movement of the pickerand operating to increase the pressure of the spring upon the binder.

S. In a loom, the lay, a shuttle-box thereon, the binder, aspring-supporting member pivoted to the lay, a binder-spring connectedtherewith, a cam-lever mounted on the lay and cooperating with saidspring-supporting member, said cam-lever being normally in the path ofthe picker, whereby as the picker is thrown backward by the impact ofthe incoming shuttle, the cam-lever is operated to thereby bring thespring-supporting member in such a position as to increase the action ofthe spring upon the binder.

IOO

IIO

A Y ,f

9. In a loom, the lay, a shuttle-box thereon, a binder, aspringcontrolled rock-shaft mounted on the lay, and having a finger inengagement with the binder to resist outward movement of said binder, abinder-spring normally exerting no appreciable pressure on the binder,and means to positively increase the action of the binder-spring as theshuttle ends its ight, the construction being such that the initialoutward movement of the binder is resisted by the spring-controlledrock-shaft alone, and thereafter the continued outward movement isresisted by both the spring-controlled rock-shaft and the binderspring,and the action of said binder-spring is increased as the shuttle endsits iight.

l0. In a loom, a binder, a binder-spring, and means governed by orthrough the shuttle on each incoming pick thereof and rendered operativesubsequent to the contact of zo the shuttle with the binder toautomatically adjust the tension of the spring in proportion to theshuttle speed prior to engagement of the shuttle and binder.

In testimony whereof we have signed our z5 names to this specificationin the presence of two subscribing witnesses.

WALTER H. BAILEY. ISAAC SNOW.

Witnesses for Bailey:

DUNCAN WOOD, DANIEL W. CAHILL. Witnesses for Snow:

CHRISTOPHER N. WILSON, WILLIAM BUoKLEY.

